de Carvalho Ravena C, Parisi Julia R, Prado Wiliam A, de Araújo João E, Silva Andreia M, Silva Josie R T, Silva Marcelo L
Department of Physiotherapy, College of Nursing, Federal University of Alfenas, Alfenas, MG, Brazil.
Department of Pharmacology, School of Medicine, University of São Paulo, Ribeirão Preto, SP, Brazil.
J Acupunct Meridian Stud. 2018 Apr;11(2):54-61. doi: 10.1016/j.jams.2018.02.002. Epub 2018 Feb 13.
The objective of this study was to compare the effects of one or multiple sessions of electroacupuncture (EA) in patients with chronic low back pain. The outcome measures were visual analog score (VAS), pressure pain threshold (PPT), McGill pain questionnaire (MPQ), Roland Morris disability questionnaire (RMDQ), low back skin temperature, surface electromyography of longissimus muscle (contraction/rest) and blood cytokines. After examination (AV0), patients were submitted to EA (2 Hz, 30 minutes, bilaterally at the SP6, BL23, BL31, BL32, BL33, and BL60) and were revaluated after one week (AV1). Patients with VAS <3 (VAS <3 group, n = 20) were directed to return after three weeks (AV2). Patients with VAS >3 (VAS >3 group, n = 20) were submitted to one weekly EA-treatment and revaluated after three weeks (AV2). The VAS <3 group showed a significant reduction in VAS and MPQ and increased PPT in AV1, but not in AV2. No significant differences were found in RMDQ. The VAS >3 group showed reduction in VAS and increased PPT in AV1 and a reduction in MPQ and RMDQ only in AV2. No significant differences were found in electromyography, temperature or cytokines. Thus, despite 2Hz-EA is effective reducing low back pain, some patients only experienced reduced pain intensity and improved functional capacity after full treatment.
本研究的目的是比较单次或多次电针（EA）治疗对慢性腰痛患者的影响。观察指标包括视觉模拟评分（VAS）、压力疼痛阈值（PPT）、麦吉尔疼痛问卷（MPQ）、罗兰·莫里斯功能障碍问卷（RMDQ）、腰部皮肤温度、最长肌表面肌电图（收缩/静息）和血液细胞因子。检查后（AV0），患者接受电针治疗（2Hz，30分钟，双侧针刺三阴交、肾俞、次髎、秩边、委中、承山），一周后重新评估（AV1）。VAS评分<3分的患者（VAS<3组，n = 20）被安排在三周后复诊（AV2）。VAS评分>3分的患者（VAS>3组，n = 20）每周接受一次电针治疗，并在三周后重新评估（AV2）。VAS<3组在AV1时VAS和MPQ显著降低，PPT升高，但在AV2时无变化。RMDQ无显著差异。VAS>3组在AV1时VAS降低，PPT升高，仅在AV2时MPQ和RMDQ降低。肌电图、温度或细胞因子方面无显著差异。因此，尽管2Hz电针可有效减轻腰痛，但部分患者仅在完成全部治疗后疼痛强度降低且功能能力改善。
